Finding the Fourth Proportional to 1,368.27, 1,887.03 and 947.88

Step by Step Solution

1. Step 1: Write the proportion equation
   1,368.27 : 1,887.03 = 947.88 : x
2. Step 2: Convert to fraction form
   1,368.27/1,887.03 = 947.88/x
3. Step 3: Cross multiply
   1,368.27x = 1,887.03 × 947.88
4. Step 4: Simplify right side
   1,368.27x = 1,788,678.00
5. Step 5: Solve for x
   x = 1,788,678.00/1,368.27
6. Step 6: Final answer
   x = 1,307.26